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Introduction
Note:
The Probe is to be used only in the manner outlined in this instruction manual.
The Probe is an ultrasonic level monitor combining sensor and electronics in a single package. It is
designed to measure liquid levels in closed vessels. The sensor is PVDF or ETFE, allowing The Probe
to be used in a wide variety of industries. The optional sanitary version affords quick removal and
ease of cleaning as demanded by the food, beverage and pharmaceutical industries.
The sensor houses the ultrasonic transducer and temperature sensing element. The Probe emits a
series of ultrasonic pulses from the transducer. Each pulse is reflected as an echo from the material
and sensed by the transducer. The echo is processed by The Probe using Milltronic's proven `Sonic
Intelligence' techniques. Filtering is applied to help discriminate between the true echo from the
material, and false echoes from acoustical and electrical noises and agitator blades in motion. The
time for the pulse to travel to the material and back is temperature compensated and then converted
into distance for display, mA output and relay actuation.
Installation
Environmental
The Probe should be mounted in an area that is within the temperature range specified and that is
suitable to the housing rating and materials of construction. The front lid should be accessible to
allow programming, wiring and display viewing.
It is advisable to keep The Probe away from high voltage or current runs, contactors and SCR control
drives.
Location
Mounting
Note:
Mount The Probe so that the face of the sensor is at least 25 cm above the highest
anticipated level.
7ML19981GD61
The Probe – INSTRUCTION MANUAL
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